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9329b16ab1
They are now refered to as cache drivers rather than ACM classes. The additional utility functions from the original cache class have been moved to the cache_service. The class loader is now instantiated without a cache instance and passed one as soon as it is constructed to allow autoloading the cache classes. PHPBB3-9983
114 lines
2.3 KiB
PHP
114 lines
2.3 KiB
PHP
<?php
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/**
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*
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* @package acm
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* @version $Id$
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* @copyright (c) 2005, 2009 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* ACM for XCache
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* @package acm
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*
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* To use this module you need ini_get() enabled and the following INI settings configured as follows:
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* - xcache.var_size > 0
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* - xcache.admin.enable_auth = off (or xcache.admin.user and xcache.admin.password set)
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*
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*/
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class phpbb_cache_driver_xcache extends phpbb_cache_driver_memory
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{
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var $extension = 'XCache';
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function __construct()
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{
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parent::__construct();
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if (!function_exists('ini_get') || (int) ini_get('xcache.var_size') <= 0)
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{
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trigger_error('Increase xcache.var_size setting above 0 or enable ini_get() to use this ACM module.', E_USER_ERROR);
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}
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}
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/**
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* Purge cache data
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*
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* @return void
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*/
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function purge()
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{
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// Run before for XCache, if admin functions are disabled it will terminate execution
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parent::purge();
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// If the admin authentication is enabled but not set up, this will cause a nasty error.
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// Not much we can do about it though.
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$n = xcache_count(XC_TYPE_VAR);
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for ($i = 0; $i < $n; $i++)
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{
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xcache_clear_cache(XC_TYPE_VAR, $i);
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}
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}
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/**
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* Fetch an item from the cache
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*
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* @access protected
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* @param string $var Cache key
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* @return mixed Cached data
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*/
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function _read($var)
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{
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$result = xcache_get($this->key_prefix . $var);
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return ($result !== null) ? $result : false;
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}
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/**
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* Store data in the cache
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*
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* @access protected
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* @param string $var Cache key
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* @param mixed $data Data to store
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* @param int $ttl Time-to-live of cached data
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* @return bool True if the operation succeeded
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*/
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function _write($var, $data, $ttl = 2592000)
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{
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return xcache_set($this->key_prefix . $var, $data, $ttl);
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}
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/**
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* Remove an item from the cache
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*
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* @access protected
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* @param string $var Cache key
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* @return bool True if the operation succeeded
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*/
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function _delete($var)
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{
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return xcache_unset($this->key_prefix . $var);
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}
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/**
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* Check if a cache var exists
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*
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* @access protected
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* @param string $var Cache key
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* @return bool True if it exists, otherwise false
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*/
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function _isset($var)
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{
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return xcache_isset($this->key_prefix . $var);
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}
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}
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